"Over the river and through the woods to Grandmother's house we go ... ." Road trips are a national pastime, and planning them is no small feat. If you're planning a road trip, you'll probably log onto Google or Apple Maps, enter your destination and get a route laid out for you.
You may even plan to visit some landmarks or restaurants along the way. But will you plan your pee breaks? When Google tells you it will only take nine hours to get to Grandma's house, that doesn't include food and potty stops. But someone is already working out how to solve this problem.
Brian Williams (not that Brian Williams), a professor at MIT, is working with a team of researchers to develop planning algorithms. Google Maps can give you an approximate time it will take to get to Grandma's house, but it can't keep your road trip on schedule.